I have an acer flat panel LCD moniter (not sure which one) that has worked perectly for three years. Then one day (with no new hardware or software added to the computer) it decides that it will keep flicking up with 'auto config please wait which flashes on and off the screen. THIS IS ANOYING AS HELL.
I'v checked that the resolution is set to 1280x1240, and the refresh rate is 60Hz
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Depending on the specifics of your tv (flat screen LCD, LED etc, Plasma, or CRT)
Unfortunately sounds like ghosting / indicative of Bad Panel.
BUT to be sure ...
Double check picture settings to be sure setting inadvertently changed. try using Component to be sure connection isn't problem
COULD also be defective T-con, or in plasma a sustain board can create issues. (for a TV shop to determine/ high voltage is present so not for the untrained)
If your on XP you can right click on the empty desktop and go to properties, Under the settings tab you will find options for screen resolutions. If your on Vista or 7 you right click on empty desktop space and go to screen resolution, There again you will easily find your settings for your screen resolution. Click apply and then click OK after that lay back and enjoy your screens clarity.
You most likely have a capacitor that has changed value. When a capacitor goes bad it will work after it heats up. Sometimes a bad cap will have a bulging top or show signs of leakage. Sometimes can only be checked with a meter.
Have you checked your video card or adapter?
Check the settings on the monitor itself.
If you didn't find the problem go into system properties (windows logo + pause)/hardware/device manager. Expand monitor/right click and see if your new monitor is listed. Is there a yellow or red symbol next to it? This would mean a problem, then right click symbol/properties and error will be shown.
Could be a memory issue.
Don't forget to try a "working monitor". This will narrow it down a bit.